[Bug rtl-optimization/47420] New: ICE: in calc_dfs_tree, at dominance.c:395 with c++ code

["silver24k at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47420

           Summary: ICE: in calc_dfs_tree, at dominance.c:395 with c++
                    code
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: silver24k@gmail.com


Created attachment 23085
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23085
reduced testcase

gcc version 4.6.0 20110120

$ g++ -c -Os test.cpp / g++ -c -O2 test.cpp
test.cpp: In constructor 'sfTextCtrl::sfTextCtrl(void*)':
test.cpp:55:5: internal compiler error: in calc_dfs_tree, at dominance.c:395
Please submit a full bug report,
with preprocessed source if appropriate.